Beckhoff TwinSAFE logic FB User Manual

Function blocks
Function blocks for TwinSAFE logic components 57
3.5.2 Signal description
Table 3-25: FB MON inputs
Name
Permitted type
Data type
Description
Restart
TwinSAFE-In
FB-Out
Standard-In
BOOL
Manual restart active: When the FB is started or if an
input has requested the safe state, the signal sequence
0->1->0 must be detected at the Restart input before the
safe state of the outputs is exited.
Manual restart not active: This input is not used. Both
starting and exiting the safe state is carried out
automatically, as long as no input requests any longer
the safe state.
MonIn1
TwinSAFE-In
FB-Out
BOOL
1st input channel: The parameterization determines,
whether the input is linked to a break contact (safe state
will be requested by logical 0) or Make contact (safe
state will be requested by logical 1).
MonIn2
TwinSAFE-In
FB-Out
BOOL
2nd input channel, behaves like MonIn1
If the discrepancy time is activated or used, the 1st and
2nd input channels are considered to be the 1st input
pair and a discrepancy time monitoring is carried out
between both channels.
MonIn3
TwinSAFE-In
FB-Out
BOOL
3rd input channel or 1st input channel of the 2nd input
pair, otherwise corresponds with MonIn1
MonIn4
TwinSAFE-In
FB-Out
BOOL
4th input channel or 2nd input channel of the 2nd input
pair, otherwise corresponds with MonIn2
Secure1
TwinSAFE-In
FB-Out
BOOL
Secure1 enabled: Evaluation of the inputs MonIn(x) can
be disabled.
Parameterized as break contact: the inputs MonIn(x) are
ignored if Secure1 is "1". Parameterized as make
contact: the inputs MonIn(x) are ignored if Secure1 is "0".
If the discrepancy time is not 0, Secure1 and Secure2
are considered as input pairs. The discrepancy time
between the two channels is monitored.
Secure2
TwinSAFE-In
FB-Out
BOOL
Secure2 is the 2nd channel of the input pair and
otherwise corresponds to Secure1.
EDM1
TwinSAFE-In
FB-Out
Standard-In
BOOL
EDM1 is the feedback loop for the non-delayed output
channel (MonOut). If this input is parameterized as
active, the safe state of the outputs will only be exited,
when the EDM1 supplies the "1" signal.
EDM2
TwinSAFE-In
FB-Out
Standard-In
BOOL
EDM2 is the feedback loop for the delayed switching of
the output channel (MonDelOut). If this input is
parameterized as active, the safe state of the outputs will
only be exited, when the EDM2 supplies the "1" signal.

Beckhoff TwinSAFE logic FB Specifications

General

Brand	Beckhoff
Model	TwinSAFE logic FB
Category	Industrial Electrical
Language	English

Summary

1 Foreword

Notes on the Documentation

Information regarding the documentation's target audience, origin, currentness, and symbols used.

Safety Instructions

Guidance on safety instructions, delivery state, operator diligence, and explanation of notes.

2 System Description

TwinSAFE Logic Terminals and Connections

Details on TwinSAFE logic terminals, groups, connections, and configuration. Includes diagnosis overview.

System Diagnosis

Information on diagnosing TwinSAFE system components, including diagrams for TwinCAT 2 and TwinCAT 3.

3 Function Blocks

The Function Block AND

Functional description, signal details, diagnostic info, and TwinCAT configuration for the AND logic block.

The Function Block OR

Functional description, signal details, diagnostic info, and TwinCAT configuration for the OR logic block.

The Function Block OPMODE

Description of OPMODE function block for operation mode selection and restart behavior.

The Function Block ESTOP

Details on ESTOP function block: description, signals, configuration, restart behavior, and extensions.

The Function Block MUTING

Description of MUTING block, signals, configuration, examples, and extensions for EL/EJ6910.

The Function Block TON

Functional description, signal details, diagnostic info, and TwinCAT configuration for the TON delay timer.

The Function Block TOF

Functional description, signal details, diagnostic info, and TwinCAT configuration for the TOF delay timer.

The Function Block ADD

Description of ADD block for analog addition: signals, diagnostics, and TwinCAT configuration.

The Function Block SUB

Description of SUB block for analog subtraction: signals, diagnostics, and TwinCAT configuration.

The Function Block COMPARE

Description of COMPARE block for analog input comparison, including architectures, signals, and config.

The Function Block LIMIT

Description of LIMIT block for checking analog input values against Min/Max limits, including signals and config.

The Function Block COUNTER

Description of COUNTER block for up/down counting: signals, diagnostics, and TwinCAT configuration.

The Function Block CAMMONITOR

Description of CAMMONITOR block for electronic cam control: modes, inputs, outputs, parameters, and diagnostics.

4 Appendix

Beckhoff Support and Service

Information on contacting Beckhoff for technical support, system solutions, and after-sales service.

Beckhoff Headquarters Information

Contact details, phone, fax, email, and web address for Beckhoff Automation GmbH & Co. KG.